But no one was kicked out of the building for fighting and there were no arrests.

With all the heat created inside and outside the ring, the center had to turn on its air conditioning unit at 10:30 p.m. That was about 30 minutes before Pavlik’s technical knockout of Marco Antonio Rubio who couldn’t answer the bell after the ninth round.

For most of the show, the staff was able to keep the center cool by opening large doors to let the outside air lower the inside temperature, said Jamie Kelley, the center’s engineer.

But when that failed, the AC was turned on.

“It’s expensive to run” the air conditioning unit, Kelley said. “The outside air is free.”

Employees of Boston Culinary, the company that handles the center’s concessions, didn’t have figures on sales for Saturday’s event.

But they agreed that it was the center’s biggest concession day ever.

There were about 25 free-standing concession stands in addition to the four permanent concession locations. Many of the stands sold beer and hard liquor.

After the crowd cleared out, there were hundreds of empty plastic Miller Lite beer bottles on the arena floor.